90 PROCEEDINGS OF THE ACADEMY OF [Feb.., 



Hydrochloric Acid (weak).— Lansing, Michigan: Leaf buds eased 

 January 29; leaf buds burst January 31. Lafayette, Indiana: Leaf 

 buds eased January 30; leaf buds burst January 31 : first leaf withered 

 February 7 ; all leaves withered February 8. 



Acetic Acid (strong).— College Park, Maryland: No response. 

 New Brunswick, New Jersey : Leaf buds eased February 1 ; leaf buds 

 burst February 4; first leaf unfolded February 7. 



Acetic Acid (weak). — Storrs, Connecticut: No response. Lafayette, 

 Indiana : Leaf buds eased February 1 ; leaf buds burst February 4. 



Nitric Acid (strong). — Storrs, Connecticut: No response. 



Chromic Acid (strong). — State College, Pennsylvania: Leaf buds 

 eased January 30; leaf buds burst February 3; leaf buds unfolded 

 February 4; first leaf withered February 14; all leaves withered 

 February 24. 



Water. — Pennsylvania State College : Leaf buds eased February 1 ; 

 burst February 3; unfolding of first leaf February 8. New Bruns- 

 wick, New Jersey: Leaf buds eased February 1; leaf buds burst Feb- 

 ruary 4 ; first leaf unfolded February 8 ; all leaves unfolded February 

 11; first leaf withered February 14; all leaves withered February 18. 

 Ithaca, New York : Leaf buds eased February 3 ; leaf buds burst Feb- 

 ruary 4. Storrs, Connecticut : Leaf buds eased February 1 ; leaf buds 

 burst February 4 ; first leaf unfolded February 1 1 . Lansing, Michigan : 

 Leaf buds eased January 29; leaf buds burst February 1. Lafayette, 

 Indiana : Leaf buds burst February 6. Auburn, Alabama : Leaf buds 

 eased February 3; leaf buds burst February 4. College Park, Mary- 

 land : Leaf buds eased February 1 ; leaf buds burst February 3 ; first 

 leaf unfolded February 7; flower buds eased January 28; flower buds 

 burst January 29. 



Pear (Seckel).— 



Corrosive sublimate (strong). — University of Pennsylvania: Leaf 

 buds burst February 1 ; first leaf unfolded February 4. College Park, 

 Maryland: Leaf buds eased February 3; leaf buds burst February 4; 

 first leaf unfolded February 7 ; all leaves unfolded February 1 1 ; first 

 leaf withered February 14; all leaves withered February 24. Ithaca, 

 New York : Leaf buds burst February 14 ; first leaf unfolded February 

 18. 



Corrosive sublimate (weak). — Lafayette, Indiana: No response. 

 Lansing, Michigan: Leaf buds eased January 31; leaf buds burst 

 February 1; first leaf unfolded February 3; all leaves unfolded Feb- 

 ruary 7; first leaf withered February 7; all leaves withered February 

 II. 



